Heidi Montag and Jen Bunney hang out three years after 'Hills' ends

(UPI) -- Heidi Montag made plenty of enemies while starring on The Hills, but she's still friends with at least one of her former co-stars.

Three years after the show went off air, Montag and Jen Bunney apparently still hang out. The two posed for a picture, posted on Bunney's Instagram account last week.

Bunney first surfaced as a friend of Lauren Conrad on Laguna Beach, and then appeared on The Hills, become friends with Montag. When Montag's boyfriend, now husband, Spencer Pratt showed up, he caused a rift between Montag and Conrad.

While Montag is still hoping for a corner of the spotlight, working with Pratt on SpeidiShow, a fake reality show, Bunney is working on a Masters in Public Health in epidemiology and global healthcare policy at the University of California, Berkeley. She got engaged to boyfriend to Taylor Dunphy in June.